Stress-strength interference theory for a pin-loaded composite joint

Paul D. Herrington
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引用次数: 12

Abstract

Considering the increasing applications of composites as structural components, the reliability of these materials is an important issue. In this paper, stress-strength interference theory is used to determine the reliability of a component that is characterized having a Weibull strength distribution and is under the effects of an applied load that is not deterministic, but follows a probability distribution. The assumption that failure is caused by the maximum of a sequence of applied loads is the basis for describing the applied load distribution as a Gumbel Type 1 extreme value distribution. Reliability plots are given for a class of strength parameters that are typical of graphite/epoxy laminates. A numerical example for a pin-loaded composite laminate is shown using experimentally obtained data.

销加载复合材料节点的应力-强度干涉理论
考虑到复合材料作为结构部件的应用越来越多,这些材料的可靠性是一个重要问题。在本文中,应力-强度干涉理论用于确定具有威布尔强度分布的部件的可靠性,并且该部件受到非确定性但遵循概率分布的外加载荷的影响。假定失效是由一系列施加载荷的最大值引起的,这是将施加载荷分布描述为Gumbel 1型极值分布的基础。给出了一类典型的石墨/环氧复合材料强度参数的可靠度图。利用实验得到的数据,给出了引脚加载复合材料层合板的数值算例。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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